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2 years ago

You estimate that a box contains 141 envelopes the actual number of envelopes is 150 find the percent error

1 answer:

7 0

0.0094% error

Divide 150/141. You get 0.94, then you need to find the percentage of that by clicking the percent button of your calculator

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"What is the probability that the first two cards drawn from a deck will be red? (With replacement)"?

Novay_Z [31]

26/52 times 26/52

Which is equivalent to 1/2 times 1/2

Which equals 1/4. Or 25%. Or 1:4. However you prefer

3 0

2 years ago

A 1.5-meter snake lives in the ceiling of a college’s Chemistry Building. One day, she decides to go outside, and slithers throu

lubasha [3.4K]

Answer:

$The~answer~for~this~question~is:135,000$

Step-by-step explanation:

→ $It's~quite~simple~actually.~Here~let~me~show~you:$

$15$ × $90=1350$

→ $Now,~we~take~1350~and~multiply~it~with~100:$

$1350$ × $100=135,000$

$Easy~isn't?~Hope~this~helped!$

7 0

2 years ago

What is the rock style

bearhunter [10]

Answer:

Step-by-step explanation:Rock music is a broad genre of popular music that originated as "rock and roll" in the United States in the early 1950s, and developed into a range of different styles in the 1960s and later, particularly in the United Kingdom and in the United States.

4 0

2 years ago

I need help in math. I never quite got these. (question 20)

erastova [34]

$3x^{2} y$ is the correct answer

3 0

2 years ago

A retail store did research and determined that, on average, each customer spends 40 minutes in their store per visit, with a st

Blababa [14]

Answer:

0.13% of customers spend more than 46 minutes

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 40, \sigma = 2$